CaratHunter
Plans
Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG787602899

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG787602899

Diamond specifications and retailer prices

From $219 USD
As of October 29, 2026
Save $1,881 USD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,100 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG787602899 or 787602899. Listed at 17 retailers as of October 29, 2026, with prices from $219 to $2,100, a $1,881 spread on the same certified stone. Do Amore Diamonds lists it at $2,100. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787602899
Dimensions9.69 × 6.31 × 3.86 mm
L/W Ratio1.54
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.69 mm6.31 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787602899
Side View
Table 59.0%Crown 36.2°Girdle: THN-STKPavilion 40.2°Culet: NoneDepth 61.2%

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: $2,100 USD|Low: $174 USD|High: $2,100 USD|Avg: $728 USD
Do Amore Diamonds
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
November 1, 2026
Retailer 13$219 USD
Retailer 3$245 USD
Retailer 6$254 USD
Retailer 4$271 USD
Retailer 10$271 USD
Retailer 15$387 USD
Retailer 11$464 USD
Retailer 8$568 USD
Retailer 14$600 USD
Retailer 9$875 USD
Retailer 5$963 USD
Retailer 7$1,134 USD
Retailer 2$1,200 USD
Retailer 12$1,253 USD
Do Amore Diamonds$2,100 USD

42 data points across 15 retailers

17 retailers$219 USD to $2,100 USD

Retailer 1
-
$219 USD
Price last confirmed 40 days ago
A
Retailer 2
-
$219 USD
View
A
Retailer 3
-
$245 USD
View
Final sale: no returns
A
Retailer 4
-
$254 USD
View
Retailer 5
-
$268 USD
View
Price last confirmed 40 days ago
Retailer 6
-
$271 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$271 USD
View
A
Retailer 8
-
$387 USD
View
A
Retailer 9
-
$464 USD
View
B+
Retailer 10
-
$568 USD
£447 GBP
View
B+
Retailer 11
-
$600 USD
View
B
Retailer 12
-
$875 USD
View
B
Retailer 13
-
$963 USD
View
B
Retailer 14
-
$1,134 USD
View
B
Retailer 15
-
$1,200 USD
£945 GBP
View
B
Retailer 16
-
$1,253 USD
View
Most Expensive
B
Do Amore Diamonds
27-137BF777B · Oct 31
$2,100 USD
View
16 more retailers have this diamond
Prices start from $219 USDSave up to $1,881 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
1.51ct Oval
$219 USD