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Round|Lab Grown|IGI

1.00ct D VS1 Round Lab Grown Diamond

EX • D/VS1 • IGI LG778645742

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645742

Diamond specifications and retailer prices

From $167 USD
As of October 29, 2026
Save $921 USD (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,791 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778645742 or 778645742. Listed at 23 retailers as of October 28, 2026, with a 552% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645742
Dimensions6.34 × 6.39 × 3.91 mm
L/W Ratio1.01
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
6.34 mm6.39 mm1.00 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645742
Side View
Table 60.0%Crown 34.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.5%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $353 USD|Low: $160 USD|High: $979 USD|Avg: $425 USD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 15$167 USD
Retailer 13$186 USD
Retailer 3$207 USD
Retailer 2$280 USD
Retailer 6$287 USD
Retailer 1$353 USD
Retailer 11$355 USD
Retailer 10$365 USD
Retailer 9$387 USD
Retailer 5$448 USD
Retailer 12$504 USD
Retailer 14$544 USD
Retailer 7$665 USD
Retailer 4$679 USD
Retailer 8$973 USD

41 data points across 15 retailers

23 retailers$167 USD to $1,088 USD

A
Cheapest Retailer
-
$167 USD
A
Retailer 2
-
$186 USD
View
Final sale: no returns
A
Retailer 3
-
$194 USD
View
A
Retailer 4
-
$207 USD
View
A
Retailer 5
-
$207 USD
View
A
Retailer 6
-
$230 USD
HK$1,800 HKD
View
Price last confirmed 55 days ago
B+
Retailer 7
-
$280 USD
View
A
Retailer 8
-
$287 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$353 USD
£278 GBP
View
B+
Retailer 10
-
$355 USD
ZAR 5,741 ZAR
View
B+
Retailer 11
-
$365 USD
£287 GBP
View
B+
Retailer 12
-
$387 USD
€369 EUR
View
B+
Retailer 13
-
$405 USD
View
Price last confirmed 87 days ago
B+
Retailer 14
-
$448 USD
View
B+
Retailer 15
-
$504 USD
A$776 AUD
View
B
Retailer 16
-
$544 USD
View
B
Retailer 17
-
$567 USD
SGD 766 SGD
View
B
Retailer 18
-
$665 USD
View
B
Retailer 19
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$679 USD
View
B
Retailer 20
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$720 USD
View
B
Retailer 21
-
$973 USD
£766 GBP
View
B
Retailer 22
-
$1,088 USD
View
Most Expensive
B
Queensmith
LG778645742 · Oct 27
$1,791 USD
£1,410 GBP
View
Price under review
22 more retailers have this diamond
Prices start from $167 USDSave up to $921 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Round
$167 USD