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Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG845615106

Shape and cutting style on the report: Oval modified brilliant

Certificate IGI LG845615106

Diamond specifications and retailer prices

From $463 NZD
$261 USD
As of October 31, 2026
Save $1,914 NZD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,378 NZD at Brilliant Earth · As of October 31, 2026
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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG845615106 or 845615106. Listed at 13 retailers as of October 31, 2026, with prices from $463 to $2,378, a $1,914 spread on the same certified stone. Brilliant Earth lists it at $2,378. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845615106
Dimensions8.74 × 5.92 × 3.75 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.74 mm5.92 mm1.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845615106
Side View
Table 65.0%Crown 36.1°Girdle: MED-THKPavilion 30.9°Culet: NoneDepth 63.3%

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 31
Current: $2,378 NZD|Low: $463 NZD|High: $2,378 NZD|Avg: $1,185 NZD|+2.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 11$463 NZD
Retailer 4$527 NZD
Retailer 7$550 NZD
Retailer 9$809 NZD
Retailer 3$843 NZD
Retailer 13$889 NZD
Retailer 8$922 NZD
Retailer 10$1,590 NZD
Retailer 12$1,595 NZD
Retailer 2$1,650 NZD
Retailer 6$1,981 NZD
Retailer 5$2,257 NZD
Brilliant Earth$2,378 NZD

15 data points across 13 retailers

13 retailers$463 NZD to $2,378 NZD

A
Cheapest Retailer
-
$463 NZD
$261 USD
A
Retailer 2
-
$527 NZD
$297 USD
View
Final sale: no returns
A
Retailer 3
-
$550 NZD
£244 GBP
View
B+
Retailer 4
-
$809 NZD
€434 EUR
View
B+
Retailer 5
-
$843 NZD
$475 USD
View
B+
Retailer 6
-
$889 NZD
$501 USD
View
B+
Retailer 7
-
$922 NZD
£409 GBP
View
B
Retailer 8
-
$1,590 NZD
$896 USD
View
B
Retailer 9
-
$1,595 NZD
$899 USD
View
B
Retailer 10
-
$1,650 NZD
$930 USD
View
B
Retailer 11
-
$1,981 NZD
£879 GBP
View
B
Retailer 12
-
$2,257 NZD
$1,272 USD
View
Most Expensive
B
Brilliant Earth
22346932A · Oct 31
$2,378 NZD
$1,340 USD
View
12 more retailers have this diamond
Prices start from $463 NZDSave up to $1,914 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
$463 NZD