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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 $312 AUD
$219 USD
As of October 29, 2026
Save $2,678 AUD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,990 AUD 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 $312 to $2,990, a $2,678 spread on the same certified stone. Do Amore Diamonds lists it at $2,990. 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
Colour
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

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,990 AUD|Low: $248 AUD|High: $2,990 AUD|Avg: $1,037 AUD
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$312 AUD
Retailer 3$349 AUD
Retailer 6$362 AUD
Retailer 4$386 AUD
Retailer 10$386 AUD
Retailer 15$551 AUD
Retailer 11$661 AUD
Retailer 8$808 AUD
Retailer 14$854 AUD
Retailer 9$1,246 AUD
Retailer 5$1,371 AUD
Retailer 7$1,615 AUD
Retailer 2$1,709 AUD
Retailer 12$1,784 AUD
Do Amore Diamonds$2,990 AUD

42 data points across 15 retailers

17 retailers$312 AUD to $2,990 AUD

Retailer 1
-
$312 AUD
$219 USD
Price last confirmed 40 days ago
A
Retailer 2
-
$312 AUD
$219 USD
View
A
Retailer 3
-
$349 AUD
$245 USD
View
Final sale: no returns
A
Retailer 4
-
$362 AUD
$254 USD
View
Retailer 5
-
$382 AUD
$268 USD
View
Price last confirmed 40 days ago
Retailer 6
-
$386 AUD
$271 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$386 AUD
$271 USD
View
A
Retailer 8
-
$551 AUD
$387 USD
View
A
Retailer 9
-
$661 AUD
$464 USD
View
B+
Retailer 10
-
$808 AUD
£447 GBP
View
B+
Retailer 11
-
$854 AUD
$600 USD
View
B
Retailer 12
-
$1,246 AUD
$875 USD
View
B
Retailer 13
-
$1,371 AUD
$963 USD
View
B
Retailer 14
-
$1,615 AUD
$1,134 USD
View
B
Retailer 15
-
$1,709 AUD
£945 GBP
View
B
Retailer 16
-
$1,784 AUD
$1,253 USD
View
Most Expensive
B
Do Amore Diamonds
27-137BF777B · Oct 31
$2,990 AUD
$2,100 USD
View
16 more retailers have this diamond
Prices start from $312 AUDSave up to $2,678 AUD

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
$312 AUD