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Marquise|Lab Grown|IGI

1.00ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG669420134

Certificate IGI LG669420134

Diamond specifications and retailer prices

From $271 USD
Save $2,219 USD (89%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $2,490 USD at Brilliant Earth
View at Brilliant Earth

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG669420134 or 669420134. Listed at 28 retailers, with prices from $271 to $2,490 at Brilliant Earth, a $2,219 spread on the same certified stone. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669420134
Dimensions10.75 × 5.23 × 3.17 mm
L/W Ratio2.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.75 mm5.23 mm1.00 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669420134
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 40°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $2,490 USD|Low: $215 USD|High: $2,490 USD|Avg: $995 USD
Brilliant Earth
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October 1, 2026
Retailer 23$271 USD
Retailer 2$302 USD
Retailer 27$315 USD
Retailer 11$332 USD
Retailer 21$430 USD
Retailer 15$437 USD
Retailer 8$440 USD
Retailer 24$499 USD
Retailer 9$578 USD
Retailer 10$596 USD
Retailer 6$630 USD
Retailer 26$650 USD
Retailer 17$824 USD
Retailer 14$836 USD
Retailer 4$902 USD
Retailer 25$943 USD
Retailer 22$1,193 USD
Retailer 12$1,211 USD
Retailer 5$1,225 USD
Retailer 19$1,341 USD
Retailer 20$1,358 USD
Retailer 7$1,381 USD
Retailer 18$1,418 USD
Retailer 13$1,451 USD
Retailer 3$1,505 USD
Retailer 16$2,410 USD
Brilliant Earth$2,490 USD

38 data points across 27 retailers

28 retailers$271 USD to $2,490 USD

A
Cheapest Retailer
-
$271 USD
A
Retailer 2
-
$302 USD
View
A
Retailer 3
-
$315 USD
View
A
Retailer 4
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$332 USD
View
A
Retailer 5
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$430 USD
View
A
Retailer 6
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$437 USD
View
A
Retailer 7
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$440 USD
View
A
Retailer 8
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$499 USD
HK$3,900 HKD
View
A
Retailer 9
-
$578 USD
View
A
Retailer 10
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$596 USD
€568 EUR
View
A
Retailer 11
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$630 USD
ZAR 10,183 ZAR
View
A
Retailer 12
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$638 USD
£503 GBP
View
Price last confirmed 21 days ago
A
Retailer 13
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$652 USD
£513 GBP
View
B+
Retailer 14
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$824 USD
A$1,268 AUD
View
B+
Retailer 15
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$836 USD
View
B+
Retailer 16
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$902 USD
A$1,387 AUD
View
B+
Retailer 17
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$943 USD
View
B
Retailer 18
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$1,193 USD
View
B
Retailer 19
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$1,211 USD
SGD 1,637 SGD
View
B
Retailer 20
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$1,225 USD
View
B
Retailer 21
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$1,341 USD
£1,056 GBP
View
Price last confirmed 22 days ago
B
Retailer 22
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$1,358 USD
View
B
Retailer 23
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$1,381 USD
View
B
Retailer 24
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$1,418 USD
View
B
Retailer 25
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$1,451 USD
A$2,233 AUD
View
B
Retailer 26
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$1,505 USD
£1,185 GBP
View
B
Retailer 27
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$2,410 USD
View
Most Expensive
B
Brilliant Earth
17199424Y · Sep 29
$2,490 USD
View
27 more retailers have this diamond
Prices start from $271 USDSave up to $2,219 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing.

A
1.00ct Marquise
$271 USD