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Oval|Lab Grown|IGI

1.51ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG689566208

Certificate IGI LG689566208

Diamond specifications and retailer prices

From $298 USD
Save $4,672 USD (94%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $4,970 USD at Brilliant Earth
View at Brilliant Earth

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG689566208 or 689566208. Listed at 26 retailers, with prices from $298 to $4,970 at Brilliant Earth, a $4,672 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

1.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689566208
Dimensions9.21 × 6.50 × 4.08 mm
L/W Ratio1.42
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
9.21 mm6.50 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689566208
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

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

Price History

Last verified: Sep 28
Current: $394 USD|Low: $237 USD|High: $1,880 USD|Avg: $806 USD|+0.8%
Retailer 1
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Retailer 24
October 1, 2026
Retailer 8$298 USD
Retailer 22$333 USD
Retailer 3$346 USD
Retailer 13$365 USD
Retailer 1$394 USD
Retailer 18$428 USD
Retailer 19$435 USD
Retailer 7$560 USD
Retailer 4$592 USD
Retailer 24$627 USD
Retailer 6$629 USD
Retailer 20$647 USD
Retailer 15$831 USD
Retailer 23$858 USD
Retailer 10$1,009 USD
Retailer 14$1,037 USD
Retailer 2$1,188 USD
Retailer 11$1,201 USD
Retailer 17$1,236 USD
Retailer 5$1,245 USD
Retailer 21$1,499 USD
Retailer 16$1,506 USD
Retailer 9$1,528 USD
Retailer 12$1,880 USD

41 data points across 24 retailers

26 retailers$298 USD to $4,970 USD

A
Cheapest Retailer
-
$298 USD
A
Retailer 2
-
$333 USD
View
A
Retailer 3
-
$346 USD
View
A
Retailer 4
-
$365 USD
View
A
Retailer 5
-
$394 USD
£311 GBP
View
B+
Retailer 6
-
$428 USD
View
A
Retailer 7
-
$435 USD
HK$3,400 HKD
View
A
Retailer 8
-
$560 USD
View
A
Retailer 9
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$592 USD
€564 EUR
View
A
Retailer 10
-
$627 USD
ZAR 10,137 ZAR
View
A
Retailer 11
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$629 USD
View
A
Retailer 12
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$635 USD
£500 GBP
View
Price last confirmed 21 days ago
A
Retailer 13
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$649 USD
£511 GBP
View
A
Retailer 14
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$831 USD
View
A
Retailer 15
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$858 USD
A$1,320 AUD
View
A
Retailer 16
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$1,009 USD
View
B+
Retailer 17
-
$1,037 USD
View
B+
Retailer 18
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$1,188 USD
View
B+
Retailer 19
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$1,226 USD
View
B+
Retailer 20
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$1,236 USD
View
B+
Retailer 21
-
$1,245 USD
SGD 1,682 SGD
View
B+
Retailer 22
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$1,499 USD
£1,180 GBP
View
B+
Retailer 23
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$1,506 USD
View
B+
Retailer 24
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$1,528 USD
View
B
Retailer 25
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$1,880 USD
A$2,893 AUD
View
Most Expensive
B
Brilliant Earth
13943199A · Sep 29
$4,970 USD
View
25 more retailers have this diamond
Prices start from $298 USDSave up to $4,672 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
1.51ct Oval
$298 USD