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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 $389 NZD
$219 USD
As of November 1, 2026
Save $3,337 NZD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,726 NZD 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 31, 2026, with prices from $389 to $3,726, a $3,337 spread on the same certified stone. Do Amore Diamonds lists it at $3,726. 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: Nov 1
Current: $3,726 NZD|Low: $373 NZD|High: $3,726 NZD|Avg: $1,290 NZD
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 2, 2026
Retailer 13$389 NZD
Retailer 3$435 NZD
Retailer 6$451 NZD
Retailer 4$481 NZD
Retailer 10$481 NZD
Retailer 15$687 NZD
Retailer 11$823 NZD
Retailer 2$1,007 NZD
Retailer 14$1,065 NZD
Retailer 9$1,553 NZD
Retailer 5$1,709 NZD
Retailer 7$2,012 NZD
Retailer 8$2,129 NZD
Retailer 12$2,224 NZD
Do Amore Diamonds$3,726 NZD

42 data points across 15 retailers

17 retailers$389 NZD to $3,726 NZD

Retailer 1
-
$389 NZD
$219 USD
Price last confirmed 41 days ago
A
Retailer 2
-
$389 NZD
$219 USD
View
A
Retailer 3
-
$435 NZD
$245 USD
View
Final sale: no returns
A
Retailer 4
-
$451 NZD
$254 USD
View
Retailer 5
-
$476 NZD
$268 USD
View
Price last confirmed 41 days ago
Retailer 6
-
$481 NZD
$271 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$481 NZD
$271 USD
View
A
Retailer 8
-
$687 NZD
$387 USD
View
A
Retailer 9
-
$823 NZD
$464 USD
View
B+
Retailer 10
-
$1,007 NZD
£447 GBP
View
B+
Retailer 11
-
$1,065 NZD
$600 USD
View
B
Retailer 12
-
$1,553 NZD
$875 USD
View
B
Retailer 13
-
$1,709 NZD
$963 USD
View
B
Retailer 14
-
$2,012 NZD
$1,134 USD
View
B
Retailer 15
-
$2,129 NZD
£945 GBP
View
B
Retailer 16
-
$2,224 NZD
$1,253 USD
View
Most Expensive
B
Do Amore Diamonds
27-137BF777B · Oct 31
$3,726 NZD
$2,100 USD
View
16 more retailers have this diamond
Prices start from $389 NZDSave up to $3,337 NZD

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
$389 NZD