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1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6511363422

Certificate GIA 6511363422

Diamond specifications and retailer prices

From $7,307 SGD
$5,716 USD
As of October 30, 2026
Save $8,607 SGD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $15,915 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round 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 and certified by GIA 6511363422. Listed at 16 retailers as of October 30, 2026, with prices from $7,307 to $15,915, a $8,607 spread on the same certified stone. NZ Jewellers lists it at $15,915. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6511363422
Dimensions7.31 × 7.27 × 4.54 mm
L/W Ratio1.01
Top View
7.31 mm7.27 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6511363422
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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 30
Current: $15,915 SGD|Low: $6,900 SGD|High: $15,915 SGD|Avg: $9,873 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 7$7,210 SGD
Retailer 8$7,518 SGD
Retailer 9$7,955 SGD
Retailer 3$7,957 SGD
Retailer 11$8,620 SGD
Retailer 10$8,753 SGD
Retailer 5$8,911 SGD
Retailer 6$9,859 SGD
Retailer 12$9,946 SGD
Retailer 4$10,484 SGD
Retailer 2$13,261 SGD
NZ Jewellers$15,915 SGD

37 data points across 12 retailers

16 retailers$7,307 SGD to $15,915 SGD

Retailer 1
-
$7,210 SGD
$5,640 USD
Price last confirmed 10 days ago
A
Retailer 2
-
$7,307 SGD
$5,716 USD
View
A
Retailer 3
-
$7,518 SGD
$5,881 USD
View
B+
Retailer 4
-
$7,955 SGD
$6,223 USD
View
Final sale: no returns
A
Retailer 5
-
$7,957 SGD
$6,224 USD
View
B+
Retailer 6
-
$8,620 SGD
$6,743 USD
View
B+
Retailer 7
-
$8,753 SGD
$6,847 USD
View
B+
Retailer 8
-
$8,911 SGD
£5,489 GBP
View
B+
Retailer 9
-
$9,409 SGD
$7,360 USD
View
B+
Retailer 10
-
$9,409 SGD
$7,360 USD
View
B+
Retailer 11
-
$9,436 SGD
$7,381 USD
View
B+
Retailer 12
-
$9,729 SGD
$7,610 USD
View
B+
Retailer 13
-
$9,859 SGD
€7,345 EUR
View
B+
Retailer 14
-
$9,946 SGD
$7,780 USD
View
B
Retailer 15
-
$13,261 SGD
£8,168 GBP
View
Most Expensive
B
NZ Jewellers
674544cd-a763-4487-a622-a750ca9529cc · Oct 30
$15,915 SGD
$12,449 USD
View
15 more retailers have this diamond
Prices start from $7,307 SGDSave up to $8,607 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 Round
$7,307 SGD