CaratHunter
Plans
Oval|Natural|GIA

1.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 5556995187

Certificate GIA 5556995187

Diamond specifications and retailer prices

From $4,631 SGD
HK$28,300 HKD
As of October 29, 2026
Save $6,250 SGD (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,880 SGD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556995187. Listed at 21 retailers as of October 27, 2026, with prices from $4,631 to $10,880, a $6,250 spread on the same certified stone. NZ Jewellers lists it at $10,880. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.8°
Pavilion angle38.6°
OriginNatural
Grading LabGIA
CertificateGIA 5556995187
Dimensions8.60 × 6.39 × 4.22 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Top View
8.60 mm6.39 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5556995187
Side View
Table 59.0%Crown 37.8°Girdle: MED-VTKPavilion 38.6°Culet: NoneDepth 65.9%

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: $10,880 SGD|Low: $4,631 SGD|High: $11,205 SGD|Avg: $6,383 SGD|-2.9%
NZ Jewellers
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 29, 2026
Retailer 5$4,631 SGD
Retailer 19$4,791 SGD
Retailer 14$4,858 SGD
Retailer 10$4,978 SGD
Retailer 11$5,222 SGD
Retailer 7$5,658 SGD
Retailer 20$5,658 SGD
Retailer 21$5,658 SGD
Retailer 2$5,826 SGD
Retailer 9$5,987 SGD
Retailer 16$6,085 SGD
Retailer 13$6,210 SGD
Retailer 3$6,366 SGD
Retailer 8$6,366 SGD
Retailer 12$6,528 SGD
Retailer 4$6,571 SGD
Retailer 18$6,661 SGD
Retailer 15$6,896 SGD
Retailer 6$7,264 SGD
Retailer 17$10,000 SGD
NZ Jewellers$10,880 SGD

25 data points across 21 retailers

21 retailers$4,631 SGD to $10,880 SGD

A
Cheapest Retailer
-
$4,631 SGD
HK$28,300 HKD
A
Retailer 2
-
$4,791 SGD
$3,748 USD
View
A
Retailer 3
-
$4,858 SGD
$3,800 USD
View
A
Retailer 4
-
$4,978 SGD
$3,894 USD
View
A
Retailer 5
-
$5,222 SGD
$4,085 USD
View
Final sale: no returns
A
Retailer 6
-
$5,658 SGD
$4,426 USD
View
A
Retailer 7
-
$5,658 SGD
$4,426 USD
View
A
Retailer 8
-
$5,658 SGD
$4,426 USD
View
A
Retailer 9
-
$5,826 SGD
$4,557 USD
View
A
Retailer 10
-
$5,987 SGD
$4,683 USD
View
A
Retailer 11
-
$6,085 SGD
£3,748 GBP
View
A
Retailer 12
-
$6,210 SGD
£3,825 GBP
View
A
Retailer 13
-
$6,366 SGD
$4,980 USD
View
A
Retailer 14
-
$6,366 SGD
$4,980 USD
View
A
Retailer 15
-
$6,528 SGD
$5,106 USD
View
A
Retailer 16
-
$6,571 SGD
$5,140 USD
View
A
Retailer 17
-
$6,661 SGD
€4,962 EUR
View
A
Retailer 18
-
$6,896 SGD
$5,394 USD
View
A
Retailer 19
-
$7,264 SGD
$5,682 USD
View
B+
Retailer 20
-
$10,000 SGD
£6,159 GBP
View
Most Expensive
B
NZ Jewellers
72cea195-2876-4593-b6f0-6e66d96eb4c4 · Oct 27
$10,880 SGD
$8,511 USD
View
20 more retailers have this diamond
Prices start from $4,631 SGDSave up to $6,250 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
1.51ct Oval
$4,631 SGD