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Oval|Lab Grown|IGI

1.70ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG492136745

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG492136745

Diamond specifications and retailer prices

From $1,397 SGD
As of November 6, 2026
5 retailers carry this diamond
Most expensive: $4,511 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.7ct lab-grown oval diamond

This 1.7ct lab-grown oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492136745 or 492136745. Listed at 5 retailers as of November 6, 2026. 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

1.70
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136745
Dimensions9.51 × 6.80 × 4.19 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.51 mm6.80 mm1.70 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136745
Side View
Table 58.5%Crown 34.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $6,955 SGD|Low: $1,397 SGD|High: $6,955 SGD|Avg: $3,381 SGD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 29, 2026
Retailer 3$1,397 SGD
Retailer 8$2,340 SGD
Retailer 2$2,407 SGD
Retailer 6$2,621 SGD
Retailer 7$3,237 SGD
Retailer 4$3,753 SGD
Retailer 5$4,368 SGD
Retailer 1$6,955 SGD

3 data points across 8 retailers

5 retailers

A
Cheapest Retailer
-
$1,397 SGD
Retailer 2
-
$2,075 SGD
View
Price last confirmed 39 days ago
Retailer 3
-
$2,257 SGD
View
Price last confirmed 41 days ago
Retailer 4
-
$2,374 SGD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
5d35df1a-d2dd-4ae3-9e4b-4588a774b44c · Sep 28
$4,511 SGD
$3,520 USD
View
Price last confirmed 39 days ago
4 more retailers have this diamond
Prices start from $1,397 SGD

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
1.70ct Oval
$1,397 SGD